Countertop liquid cooler



FIG. 1 is a front, side perspective view of a countertop liquid cooler showing a first embodiment of my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is an in use top perspective view thereof;

FIG. 9 is an in use front elevational view thereof;

FIG. 10 is a front, side perspective view of a countertop liquid cooler showing a second embodiment of my new design;

FIG. 11 is a front elevational view thereof;

FIG. 12 is a right side elevational view thereof;

FIG. 13 is a rear elevational view thereof;

FIG. 14 is a left side elevational view thereof;

FIG. 15 is a top plan view thereof; and,

FIG. 16 is a bottom plan view thereof.

The broken lines in the drawings are included for the purpose of illustration and forms no part of the claimed design. 

The ornamental design for a countertop liquid cooler, as shown and described. 